网络设备运维笔记
Cisco · Juniper · Arista · NetApp

专注网络基础设施运维与自动化，记录每一行关键命令

Cisco 网络 IOS / XR / NX-OS 配置与排障 Juniper Junos EX / MX / QFX 运维实战 Arista EOS 数据中心交换机配置 NetApp 存储 ONTAP 存储阵列运维 Mellanox 网络 MLNX-OS 与高速互联 Linux 运维网络排障与系统命令网络自动化 Ansible 与自动化配置 SONiC 开源开放网络操作系统

置顶V2bX 节点后端安装配置教程（V2board/Xboard 面板）

V2bX 是 V2board/Xboard 面板的节点后端程序（Node），负责承载 V2Ray/Xray 等协议。本文讲解 V2bX 的安装部署、配置文件说明、与面板对接及常见问题排查方法。

admin 2025-11-11

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置顶宝塔面板11.1(开心版)

宝塔面板安装与配置教程：从系统与内存要求、一键安装脚本讲起，到面板端口、安全入口与登录限制加固，再到 LNMP 环境选择、建站流程、数据库管理、SSL 证书部署与自动备份，并说明开心版的安全风险与常见问题排查方法，以及日常维护要点，适合新手快速上手。

admin 2025-11-05

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置顶BBR加速脚本集合。包含BBR Plus/BBR原版/BBR魔改版，开启自带BBR加速，BBR四合一脚本等。

BBR 加速脚本合集：Debian 与 CentOS 开启系统自带 BBR 加速，四合一脚本一键切换 BBR Plus、原版与魔改版，另有 LotServer 锐速的安装卸载、生效验证与 sysctl 参数调优建议，适合 VPS 跨境线路提速。

admin 2024-12-24

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NX-OS Troubleshooting Tools: Consistency Checkers and More

Beyond show commands: NX-OS consistency checkers, OBFL, Ethanalyzer and sFlow to prove whether hardware and software agree, and where to look first.

admin 2026-10-12

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SnapMirror and SnapVault Performance Troubleshooting

A methodology for slow SnapMirror and SnapVault transfers: expected lag, schedule overlap, bandwidth throttling, and the perfstat evidence to collect.

admin 2026-10-12

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ASR9000 SNMP Timeouts: Architecture and Troubleshooting

Why SNMP polling times out on ASR 9000 and IOS XR: distributed stats collection, MPP and LPTS interaction, and the timeout settings that fix it.

admin 2026-10-12

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Juniper SRX 防火墙基础上网配置：SNAT 与安全策略

Juniper SRX 防火墙上网配置完整流程：root 与系统基础配置、接口地址与默认路由、安全区域及 host-inbound-traffic、SNAT 源地址转换、安全策略放行与 DHCP 服务，并给出 show 命令验证顺序与常见排障思路。

admin 2026-10-12

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QoS Trust Boundary on Cisco Switches: DSCP vs CoS

Configure a Cisco QoS trust boundary correctly: enable QoS globally, choose DSCP or CoS trust, and avoid the rewrite that erases arriving markings.

admin 2026-10-12

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IPv6 SLAAC vs DHCPv6: An Enterprise Decision Guide

Choose between SLAAC and DHCPv6 for enterprise IPv6: RA flag combinations, the Android limitation, prefix delegation, and where each model breaks down

admin 2026-10-12

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DWDM Optical Power Balancing: Attenuator Calculation

Balance DWDM channel power before commissioning: worked dBm arithmetic for a 32-wave system, the 4 dB inter-channel rule, and where to place attenuato

admin 2026-10-12

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网络设备运维笔记 Cisco · Juniper · Arista · NetApp

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网络设备运维笔记
Cisco · Juniper · Arista · NetApp